Association of self-reported sleep duration and hypertension: Results of a Chinese prospective cohort study

ABSTRACT

Objectives: To examine the association of self-reported sleep duration and hypertension using the data from Tianjin China. Methods: Participants aged 40–70 years without hypertension were recruited with a stratified cluster sampling method across six districts of Tianjin, China. Information regarding their sociodemographic and lifestyle-related characteristics was gathered by questionnaires. After 2 years of follow-up, the second physical examination was taken on the same crowd. Results: During the 2-year period, 874 subjects (221 men, 653 women) were successfully contacted. Multivariate logistic regression was used to analyze the relationship between the frequency of incident hypertension after the 2-year follow-up and sleep duration according to age groups. Among the younger age group (40–<55 years), a short sleep duration (≤ear h) was associated with a significantly higher risk of hypertension compared with sleeping for 7–8 h in unadjusted analyses (OR: 3.15 [95% CI: 1.04–9.54]). In a model after adjustment for the impact factors, a significant difference was also found in the frequency of incident hypertension. Conclusions: In our study, a short sleep duration (≤sho h) is a significant risk factor for hypertension in younger subjects, with no association among older subjects.

KEYWORDS:

• Age
• hypertension
• pre-hypertension
• ideal blood pressure
• sleep duration
• sex

Funding

The project of our study was supported by the science and technology fund projects from Tianjin City Health Bureau (serial number: 11KG133). All the authors declare no conflict of interests.

Additional information

Funding

The project of our study was supported by the science and technology fund projects from Tianjin City Health Bureau (serial number: 11KG133). All the authors declare no conflict of interests.